Apparatus for staining the margins of sheet blanks



M. PARIDON 1,943,454.

APPARATUS FOR STAINING THE MARGINS OF SHEET BLANKS Jan. 16, 1934.

Filed Aug. 31, 1952 4 Sheets-Sheet 1 I I l I l l mmmn w M. PARIDON Jan. 16, 1934.

APPARATUS FOR STAINING THE MARGINS 0F SHEET BLANKS 4 Sheets-Sheet 2 Filed Aug. 5 1. 1932 Jan. 16, 1934. M. PARIDON 1,943,454

APPARATUS FOR STAINING THE MARGINS OF SHEET BLANKS Filed Aug. 31, 1952 I 4 Sheets-Sheet 4 Patented Jan. 16, 1934 UNITED STATES PATENT OFFICE APPARATUS FOR STAINING THE MARGINS OF SHEET BLANKS Michael Paridon, Barberton, Ohio, assignor to The Diamond Match Company,

Baltimore,

12 Claims.

This invention relates to an apparatus for staining the margins of small sheet blanks, more particularly the blanks of Wood veneer which are commonly used in the manufacture of the slides or covers of boxes for strike-on-box matches.

In the manufacture of such slides or covers rectangular blanks of veneer, suitably scored for bending, are stained along their longitudinal edges with a dye liquor of suitable color, usually red; each blank is then bent into cover form to present stained ends, and a paper label is wrapped about the hollow structure and cemented thereto in a manner to maintain the proper formation of the cover while exposing the stained ends of the latter.

The object of the invention is to provide an apparatus of simple and efi'icient construction whereby the margins of large quantities of cover blanks can be rapidly and uniformly stained.

To this end the invention embodies features of novelty and combinations of parts, which will be hereinafter described; the scope of the invention being expressed in the appended claims.

In the drawings Figure 1 is a side elevation, partly in section, of an apparatus embodying a form of my invention, showing the position of the cover blank holders when the dye liquor is being applied to the margins of a pack of cover blanks.

Fig. 2 is a plan, partly in section, of one of the blank holders and the blanks therein, showing a part of the rock shaft for the holder.

Fig. 3 is a rear end view of the'machine, the dye tank and one of the blank holders being in section.

Fig. 4 is a perspective View of a pack of cover blanks having stained margins.

Fig. 5 is a similar view of one of the blanks lines different positions of a blank holder while it is being rocked or tilted by contact with the respective tracks.

Fig. is a sectional front elevation of one of the blank holders in position to present the lower edges of a contained stack of blanks to dye liquor in the tank.

Fig. 11 is a vertical section, as on the line 11-11 of Fi 10.

Referring to the drawings, 10 designates a suitable frame upon which is supported a rectangular tank 11 adapted to contain dye liquor, as indicated at 12. Suitable liquid supply and overflow pipes 13 and 14 respectively are or may be provided to maintain the contents of the tank at a uniform level.

The tank is provided intermediate its ends with a transverse rock shaft 15 which overlies the contained liquor, the ends of the shaft having its bearings in boxes 16 on the respective sides of the tank. This shaft is oscillated in any suitable manner through an arc of 180. In the present instance one end of the shaft 15 has fast thereon a gear sector 1'7 in mesh with a similar sector 18 loose on a lower parallel shaft 19 fixed in brackets 20 on the main frame. The sector 18 is pivotally connected by means of a link 21 with a crank 22 fast on one end of a transverse shaft 23 which has its bearings in the rear standards of the main frame. Fast on the opposite end of the shaft 23 is a spur wheel 24 in mesh with a pinion 25 on a lower transverse shaft 26 which also has its bearings in the rear standards. A pulley 27 fast on the shaft 26 is connected by means of a belt 28 with a smaller pulley 29 which is aflixed to and rotates with a large pulley 30 loose on the fixed shaft 19. The pulley 30 is connected by means of a belt 31 with a pulley 32 on the shaft of a suitablydisposed electric motor 33. Hence when the motor is energized rotary motion is transmitted therefrom through the pulley and belt connections to the shaft 26, thence through the gears 25 and 24 to the shaft 23, thereby effecting through the described crank and link connection the continuous oscillation of the sector 18, which, in turn, transmits the motion through the sector 1'7 to the shaft 15.

Secured to and oscillating with the shaft 15 are radially-disposed blank holders B (in the present instance two) in each of which a large number of the cover blanks to be stained are evenly supported, side by side, in such manner that in each partial rotation of the shaft, the then lower sides of the holders and the contained blanks are swung slightly into and parallel with the top of the dye liquor in the tank, thus during two succeeding movements of the shaft 15 the respective edges of the blanks carried by the hold rs are uniformly stained throughout their length.

Each of the blank holders comprises a back member 34 having a pair of rearwardly extending parallel arms 35 which are fixed to the shaft 15; upper and lower parallel plates 36 projecting forwardly from the back member, and upper and lower end pieces 37 secured to the respective plates, thereby providing a rectangular casing having an open front and flanged ends.

The dimensions of the casing are such that a large quantity of cover blanks, closely and evenly packed side by side, can be manually inserted into or withdrawn from the casing, it being noted that the front edges of the plates 36 and of the end pieces 3'? are flared, as at 38, to facilitate the entry of the pack in the casing, and that the spaces between the upper andlower end pieces 3? permit the attendant readily to hold the pack while he is inserting it in or removing itfrom the casing.

The plates 36 are provided with spaced parallel rows of transverse perforations 39 which communicate with parallel channels 4.0, preferably V-shape in cross-section, which extend from end to end of the plates, and hence when either plate 36, according to the direction of movement of the casing, is dipped in the top of the liquid contents of the tank, the liquid, entering the perforations and the channels, comes in contact with the lower edges of the blanks supported in the casing and efrlciently stains the adjacent marginal surfaces of the respective blanks with a minimum, yet sufficient, quantity of the liquid contained in the tank.

As the shaft 15 is above the level of the liquid 12 in the tank 11, the tops or bottoms of the holders B only will be dipped in the liquid when the arms 35 are in their extreme or horizontal dipping positions, so the intermediate portion of the holder will never be submerged in the liquid.

From the foregoing it will be seen that an attendant standing at the front of the machine, that is, the right hand side as viewed in Fig. 1, can readily insert pre-arranged packs of cover blanks in and withdraw them from the castings in timed relation to the oscillatory travel of the holders, thereby accomplishing the efiicient and economical staining of the marginal portions of the respective sides of the blanks as hereinbefore described.

1n- Figs. 6 to 11, inclusive, of the drawings, I have shown a modified form of the invention wherein a rotatable circular tank, 11, for dye liquor is centrally mounted on a stationary vertical shaft 41 rising from a base 42. In the present instance, the bottom of the tank is provided with an annular gear l3 with which meshes a pinion 44 on a horizontal shaft 45 journaled in bearings in suitably-disposed brackets on the base, which shaft is connected through a train of reducing gears 46 with the shaft of an electric motor, as 47. A series of blank holders, B, of the general construction hereinbefore described, each having at its respective ends oppositely-disposed cam-engaging members 48 of truncated triangular formation, are carried by arms 49 which are pivotally mounted above the level of the liquid, as at 56, upon standards 51 rising at spaced intervals from the bottom of the tank so as to rotate therewith.

Each arm 49 is provided with a weight 52 which tends normally to maintain the arm in vertical position with its associated holder B upstanding.

Suitable cam tracks 53 and 54 are arranged above the tank in relation to the respective paths of the cam-engaging members of each blank holder during its rotation, which tracks, in the present instance, comprise round rods bent into generally U-form, and supported in a horizontal plane above the level of the dye liquor by means of a spider or frame 55 fixed on the upper end of the shaft 41.

As illustrated the tracks 53 and 54. are dis posed on opposite sides of the spider or frame 55 with the legs 56 of the respective tracks extending in opposite directions through a vertical plane intersecting the axis of the shaft.

The legs 55 of the track 53 are spaced outwardly from and extended in parallelism with the adjacent legs 56 of the track 54, so as to receive and support between them the apices of the cam members 48 of each upstanding holder B during the rotation of the latter. the track 53 extend from corresponding arcuate portions 57 which are eccentric to the rotary path of travel of the holders and merge with a straight connecting portion 58 supported by the spider or bracket 55. The relative positions of the parts are such that when the inner cam-engaging member 48 of the holder at the front of the machine, escapes the opposing leg 55 of the cam track 54, the apex of the outer cam-engaging member is forced against the opposing curved 3' portion 57 of the track 53 which thereupon gradually cants or tilts theholder on its pivot 50 toward the center of the tank until it rides against and passes to the midsection of the straight portion of the cam track, thus continuing the tilting of the holder until it is inverted with its then lower portion immersed in the liquor in a manner to present the lower edges of the contained blanks to the dye liquor. At this juncture the apex of the upstanding camengaging member 48 of the travelling holder is in contact with and supported by the track 53, as seen in Fig. 6. This may be termed the first dipping station.

As the rotary travel of the holder continues the apex of the upstanding cam-engaging member thereof, by virtue of the action of the weight, remains in contact with the under surface of the track 53 for a short distance and then passes inwardly therefrom to present the outer inclined surface of the cam member to the track, which track thus permits the holder gradually to swing upward, and as it approaches the rear of the tank the holder assumes and occupies its previous upstanding position with its horizontally positioned cam engaging members interposed be tween and supported by the rearward parallel legs 56 of the two tracks.

As the holder progresses, the apex of the enter The legs 56 of cam-engaging member 43 escapes the leg 56 of the cam track 53 while that of the inner camengaging member continues in contact with the leg of the track 54 and, by virtue of the action of the weight, continues in contact therewith for a short distance and then passes outwardly to present the lower inclined surface to the track, which track thus tilts the holder outward about its pivot, against the action of the weight, until the apex of the then upper cam-engaging mem ber rides against and is supported by themidsection of the curved portion of the cam track 54. At this juncture the holder is again inverted, and its then lower wall is immersed inthe liquor in a manner to present the then lower edges of the contained blanks to the dye liquor. This may be termed the second dipping station.

As the holder progresses from this station, the apex of the upstanding cam-engaging member 48 thereof is held in contact with the underside of the track 54 for a short distance by the action of the weight, and then passes inwardly to present the outer inclined surface of such member to the track, which track thus permits the holder gradually to swing upward about its pivot 50, and as it approaches the front of the tank the holder occupies its previous upstanding position with its cam-engaging members 48 interposed between and supported by the forward parallel members 56 of the two tracks. This completes the cycle of travel of the blank holder.

As illustrated there are four rotary blank holders which are successively rocked during their travel with the tank, it being noted that the blanks are inserted in and, when stained, are removed from each holder when it is in upstanding position at the front of the tank.

A suitable pump 59 and connections may be associated with the tank to maintain a constant level of the dye liquor within the tank. In the present instance this pump is supported upon the spider or frame 55, and has an actuating shaft 69 which is belted with and driven from a shaft of the gear train 46 hereinbefore referred to.

It is to be understood that my invention is not limited to the specific exemplifying constructions herein disclosed, as the same may be modified within the spirit of the invention and the scope of the appended claims.

I claim-- 1. An apparatus for staining the margins of sheet blanks, comprising a tank to contain dye liquor, a holder to support a pack of blanks, and means for rocking said holder through a vertical arc to present the respective lower and upper edges of the supported blanks in alternation to the liquid contents of the tank, and substantially parallel to the level of said contents, to stain the margins of the blanks without staining the intermediate portions of the blanks.

2. An apparatus for staining the margins of sheet blanks, comprising a tank to contain dye liquor, a holder comprising a casing having spaced perforated upper and lower horizontal walls for supporting the upper and lower edges of an interposed pack of blanks, and means for rocking said holder through a vertical arc to dip the said walls alternately in the liquid contents of the tank just below and substantially parallel to the level of said contents.

3. An apparatus for staining the margins of sheet blanks, comprising a tank to contain dye liquor, a holder comprising a casing having spaced horizontal walls for supporting the upper and lower edges of an interposed pack of blanks, said walls having in their inner surfaces rows of longitudinal channels and having also transverse rows of perforations communicating with said channels, and means for rocking said holder through a vertical arc to dip the said walls alternately in the liquid contents of the tank just below and substantially parallel to the level of said contents.

4. An apparatus for staining the margins of sheet blanks, comprising a tank to contain dye liquor, a transverse rock shaft mounted above the level of the liquor, a radially-disposed holder carried by said shaft and including spaced perforated horizontal walls for supporting the upper and lower edges respectively of an interposed pack of blanks, and means for actuating said shaft through a vertical arc to dip the said walls alternately in the liquid contents of the tank, just below and substantially parallel to the level of said contents.

5. An apparatus for staining the margins of sheet blanks, comprising a tank to contain dye liquor, a transverse rock shaft mounted above the level of the liquor, a radially-disposed holder carried by said shaft and including spaced horizontal walls for supporting the upper and lower edges of a pack of blanks, said Walls having in their inner surfaces rows of longitudinal channels and having also rows of perforations communicating with said channels, and means for actuating said shaft to swing the holder in a vertical arc and dip the said Walls alternately in the liquid contents of the tank, just below and substantially parallel to the level of the said contents.

6, An apparatus for staining the margins of sheet blanks, comprising a tank to contain dye liquor, a transverse rock shaft mounted above the level of the liquor, a blank supporting element comprising a back plate carried by said shaft, upper and lower horizontal walls forwardly projecting from said plate, said walls having in their inner surfaces rows of longitudinal channels and having also rows of perforations communicating with said channels, end members on the respective walls, and means for actuating said shaft to swing the holder in a vertical arc and dip the said walls alternately in the liquid contents of the tank.

'7. An apparatus for staining the margins of sheet blanks, comprising a tank to contain dye liquor, a pivotally mounted holder to support a pack of blanks, means for moving said holder in a continuous path and adjacent the level of the dye liquor, and means for independently rocking said holder at different points of its travel to present the upper and lower edges of the supported blank at intervals to the liquid contents of the tank.

3. An apparatus for staining the margins of sheet blanks, comprising a rotary tank to contain dye liquor, a series of spaced holders pivotally supported in said tank and rotatable therewith, each of said holders constructed to support a pack of blanks, and means for independently rocking said holders at successive points of their rotary travel to present the upper and lower edges of the supported blanks of each holder at intervals to the liquid contents of the tank.

9. An apparatus for staining the margins of sheet blanks, comprising a rotary tank to contain dye liquor, a series of spaced holders pivotally supported in and rotatable with said tank, means for normally maintaining said holders in upright position, and means for independently rocking said holders at successive points of their rotary travel to present the upper and lower edges of the supported blanks of each holder at intervals to the liquid contents of the tank.

10. An apparatus for staining the margins of all sheet blanks, comprising a rotary tank to contain dye liquor, a series of spaced holders pivotally supported in and rotatable with said tank, said holders having cam-engaging members, means for normally maintaining said holders in upright position, and cams with which said members engage during the rotation of the holders, said cams constructed to rock the holders at successive points of their rotary travel to prescut the upper and lower edges of the supported blanks of each holder to the quid contents of the tank.

11. An apparatus for staining the margins of sheet blanks, comprising a tank to contain dye liquor, a holder to support a pack of blanks mounted for oscillation above the contents of the tank, and actuating means for oscillating said holder through an arc of substantially 180 to first dip one edge of the pack of blanks and then the opposite edge of said pack of blanks by the continuous movement of the actuating means. 7

12. An apparatus for staining the margins of sheet blanks, comprising a tank to contain dye liquor, a holder to support a pack of blanks mounted for oscillation above the contents of the tank, continuously moving driving means, and actuating connections between the driving means and the holder for oscillating the holder through an arc of substantially 180, to first dip one edge of a pack of blanks and then the opposite edge of said pack.

MICHAEL PARIDON. 

